Tina Grace (ティナ・グレース) is the primary antagonist in the 1994 action crime manga "Mari no Emono Volume 3" (マリーの獲物3) by mangaka 千葉 潔和. She is a powerful Colombian drug queen and part of the deadly "Nightmare" trio of siblings.
For a while, the protagonist Mari Kodaka manages to thwart the activities of many of Tina's seedy underlings. Now taking the heroine as a serious threat, she has her men bust a dangerous criminal named Gonzo out of a Cuban prison. Gonzo takes seven kindergarten girls hostage on the top floor a skyscraper, and states that his demands are that Mari is brought to him. Mari agrees to come, and manages to both kill him and save the children. Upon learning this, Tina becomes so frustrated by this point that she even contemplates suicide. Before she does, however, one of her minions tells her that he's arranged for her two sisters, Eva and Carrie, to join the cause.
The three siblings head to Japan, killing local police with guns and plastic explosives upon their arrival. After Eva is killed, Tina and Carrie manage to blow up a plane that they suspect Mari would be traveling on. Upon learning that this was not the case, Tina throws Mari out of an airport window, ties a noose around her neck, and then drives a vehicle to drag her out into the middle of a runway.
